`contentranking.co`

DNSSEC	⚠️ Not signed
NS	`ns-cloud-b1.googledomains.com` ⭐
		A	2001:4860:4802:32::6b^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-b1.googledomains.com`
		A	216.239.32.107^{🇺🇸 Google216.239.32.0/24}
			PTR	`ns-cloud-b1.googledomains.com`
NS	`ns-cloud-b2.googledomains.com`
		A	2001:4860:4802:34::6b^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-b2.googledomains.com`
		A	216.239.34.107^{🇺🇸 Google216.239.34.0/24}
			PTR	`ns-cloud-b2.googledomains.com`
NS	`ns-cloud-b3.googledomains.com`
		A	2001:4860:4802:36::6b^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-b3.googledomains.com`
		A	216.239.36.107^{🇺🇸 Google216.239.36.0/24}
			PTR	`ns-cloud-b3.googledomains.com`
NS	`ns-cloud-b4.googledomains.com`
		A	2001:4860:4802:38::6b^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-b4.googledomains.com`
		A	216.239.38.107^{🇺🇸 Google216.239.38.0/24}
			PTR	`ns-cloud-b4.googledomains.com`
SOA	`ns-cloud-b1.googledomains.com`cloud-dns-hostmaster@google.com serial=1

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759709076

Same first word

contentranking.co

DNS History

9 records (4 active, 5 former)

●NSns-cloud-b1.googledomains.com2026-07-18 → 2026-07-18 · 2 obs

○ 2026-05-07 06:22:52
● 2026-07-18 13:53:40

●NSns-cloud-b2.googledomains.com2026-07-18 → 2026-07-18 · 2 obs

○ 2026-05-07 06:22:52
● 2026-07-18 13:53:40

●NSns-cloud-b3.googledomains.com2026-07-18 → 2026-07-18 · 2 obs

○ 2026-05-07 06:22:52
● 2026-07-18 13:53:40

●NSns-cloud-b4.googledomains.com2026-07-18 → 2026-07-18 · 2 obs

○ 2026-05-07 06:22:52
● 2026-07-18 13:53:40

○NSns-cloud-e1.googledomains.com2026-04-21 → 2026-05-07 · 3 obs

● 2026-04-21 12:46:32
● 2026-05-07 06:22:52
○ 2026-07-18 13:53:40

○NSns-cloud-e2.googledomains.com2026-04-21 → 2026-05-07 · 3 obs

● 2026-04-21 12:46:32
● 2026-05-07 06:22:52
○ 2026-07-18 13:53:40

○NSns-cloud-e3.googledomains.com2026-04-21 → 2026-05-07 · 3 obs

● 2026-04-21 12:46:32
● 2026-05-07 06:22:52
○ 2026-07-18 13:53:40

○NSns-cloud-e4.googledomains.com2026-04-21 → 2026-05-07 · 3 obs

● 2026-04-21 12:46:32
● 2026-05-07 06:22:52
○ 2026-07-18 13:53:40

○MXsmtp.google.com2026-04-21 → 2026-05-07 · 3 obs

● 2026-04-21 12:46:32
● 2026-05-07 06:22:52
○ 2026-07-18 13:53:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, d.registrydns.co, c.registrydns.co, b.registrydns.co	-
contentranking.co	ns-cloud-b3.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b1.googledomains.com, ns-cloud-b4.googledomains.com	-

✅ Authoritative Response

Server:216.239.38.107

NS records: ns-cloud-b3.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b1.googledomains.com, ns-cloud-b4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contentranking.co (unsigned zone)

⏱️ Timing

Total: 705ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com...`
SOA	1	`ns-cloud-b1.googledomains.com cloud-dns-`

Analysis

Name Servers

Four name servers handle the delegation for contentranking.co: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com and ns-cloud-b4.googledomains.com.

The name servers of contentranking.co overlap at least partially with those of other domains — among them azair.org, hd-22.com, cphmc.com and two more.

Each of the four hosts ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com and ns-cloud-b4.googledomains.com has two IP addresses. ns-cloud-b1.googledomains.com points to 216.239.32.107 and 2001:4860:4802:32::6b. ns-cloud-b2.googledomains.com points to 216.239.34.107 and 2001:4860:4802:34::6b. ns-cloud-b3.googledomains.com points to 216.239.36.107 and 2001:4860:4802:36::6b. ns-cloud-b4.googledomains.com points to 216.239.38.107 and 2001:4860:4802:38::6b.

contentranking.co - robtex.com